CN102161015B - Bubble treatment method of flotation gold concentrate microbiological oxidation pretreatment process and microbiological oxidation reactor - Google Patents
Bubble treatment method of flotation gold concentrate microbiological oxidation pretreatment process and microbiological oxidation reactor Download PDFInfo
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- CN102161015B CN102161015B CN2011100627014A CN201110062701A CN102161015B CN 102161015 B CN102161015 B CN 102161015B CN 2011100627014 A CN2011100627014 A CN 2011100627014A CN 201110062701 A CN201110062701 A CN 201110062701A CN 102161015 B CN102161015 B CN 102161015B
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Abstract
The invention discloses a bubble treatment method of a flotation gold concentrate microbiological oxidation pretreatment process and a microbiological oxidation reactor. The method comprises the following steps of: arranging a bubble baffle plate at an ore pulp overflow port in the microbiological oxidation reactor to keep bubbles floating on the surface of ore pulp in the microbiological oxidation reactor, wherein only the ore pulp on the lower part of an ore liquid level can flow to the next microbiological oxidation reactor; and spraying an antifoaming agent to the bubbles floating on the surface of the ore pulp in the microbiological oxidation reactor to convert the bubbles into the ore pulp, so that the ore pulp and the ore pulp in the microbiological oxidation reactor are microbiologically oxidized together, the flotation gold concentrate microbiological oxidation pretreatment is completely performed, and the gold recovery rate is improved. The microbiological oxidation reactor has a structure that: an antifoaming agent spraying system inserted into the body of the microbiological oxidation reactor is arranged on the upper part of the reactor; and the bubble baffle plate is arranged at the ore pulp overflow port in the microbiological oxidation reactor.
Description
Technical field
The present invention relates to a kind of foam processing method and microbiological oxidation reactor of gold floatation concentrate microbiological oxidation pretreating process, the method utilizes foam baffle that the foam that produces in the gold floatation concentrate microbiological oxidation preprocessing process is retained in the microbiological oxidation reactor, then destroy foam by adding surfactant, foam is transformed into ore pulp, the ore pulp that makes it in the microbiological oxidation reactor carries out microbiological oxidation, finally reach completely purpose of gold floatation concentrate microbiological oxidation preliminary treatment, improve gold recovery.
Background technology
Rapid exploitation along with Mineral resources, tractable gravel mine and the Indigenous Gold-bearing that easily soaks reduce day by day, gold is in the microfine package status type difficult-treating gold mine and contains arsenic and sulphur, and gold floatation concentrate microbiological oxidation preconditioning technique is to solve in recent years the difficult-treating gold mine resource to reclaim one of effective means of gold.China is in world lead level at present in this technical field.Gold floatation concentrate microbiological oxidation preconditioning technique namely is in gold floatation concentrate ore pulp system, utilizes the characteristics of mineral such as having a liking for sour oxygen consumption microbiological oxidation dissolving arsenic, sulphur, iron, sulfide is wrapped up gold be transformed into exposure and can soak gold, reaches the final purpose that reclaims gold.In the microbiological oxidation process, be to supply with a large amount of air in the microbiological oxidation reactor to be absolutely necessary to gold floatation concentrate ore pulp system.But, because gold floatation concentrate is main mainly with sulfide, belong to the floatability mineral, understand in addition residual a large amount of floating agent in the gold floatation concentrate, the Gold Concentrate under Normal Pressure that particularly newly floatingly selects, floating agent almost all is retained in the gold floatation concentrate, so, just can produce mineralization during air supply in the microbiological oxidation process, and then producing a large amount of gold floatation concentrate foams, this floatation of foam can't be finished microbiological oxidation in microbiological oxidation reactor ore pulp surface, and can go downstream along with ore pulp flows, enter pretreated other operation of microbiological oxidation; When serious, the foam of generation can be gone out from the microbiological oxidation reactor in overflow, " the emitting groove " that namely is commonly called as, and above-mentioned phenomenon can cause gold floatation concentrate microbiological oxidation deleterious when occuring, and affects the high efficiente callback of subsequent job gold; During especially severe, floating foam can adsorb a large amount of simple substance gold, causes larger gold loss.At present, common treating method is: gold floatation concentrate is carried out airing, volatilization floating agent wherein; Or strengthen the washup operation in the grinding process before the gold floatation concentrate microbiological oxidation, remove floating agent.But, above-mentioned treating method all can not solve the flotation froth problem that produces in the microbiological oxidation process well, can only be to control at generation, the problem of bringing is to make gold floatation concentrate microbiological oxidation pretreating process complicated, increased production process, sometimes even can cause the loss of gold floatation concentrate, the washup operation will have been wasted a large amount of water resources, generation contains organic wastewater in a large number, does not add improvement and also can cause environmental pollution.
Summary of the invention
The foam processing method and the microbiological oxidation reactor that the purpose of this invention is to provide a kind of gold floatation concentrate microbiological oxidation pretreating process, the present invention's method is that the foam that will produce in the gold floatation concentrate microbiological oxidation process is retained in foam in the microbiological oxidation reactor by the foam baffle way is set, then spray defoamer to foam, by defoamer foam is eliminated, be transformed into ore pulp, carry out microbiological oxidation with ore pulp in the microbiological oxidation reactor, the final gold floatation concentrate of realizing, floating agents etc. are oxidation Decomposition all, the gold in the high efficiente callback difficult-treating gold mine resource.
The step of the present invention's method is as follows:
(1): the ore pulp overfall place in the microbiological oxidation reactor is provided with foam baffle, and the foam that floats on the ore pulp surface is retained in the microbiological oxidation reactor, only has liquid basifacial ore pulp in ore deposit just can flow in the next stage microbiological oxidation reactor.
Usually the ore pulp in the microbiological oxidation reactor flows automatically in the next stage microbiological oxidation reactor by outlet in surface stream mode.The present invention arranges a foam baffle at microbiological oxidation reactor ore pulp overfall place, and the foam that floats on the ore pulp surface is retained in the microbiological oxidation reactor, only has liquid basifacial ore pulp in ore deposit just can flow in the next stage microbiological oxidation reactor.The ore pulp that flows in the next stage microbiological oxidation reactor may carry the small part floating agent, and still, the microbiological oxidation reactor that foam baffle is set by what just can thoroughly solve in the microbiological oxidation process and produce bubble-related issues.
(2): the foam to microbiological oxidation reactor ore pulp surface flotation sprays defoamer.
The purpose of spraying defoamer is exactly to eliminate floating foam, make foam be transformed into ore pulp, and then the ore pulp in the microbiological oxidation reactor carries out microbiological oxidation.
How much intensity of sprinkling defoamer decides on buoyant foam, generally is as the criterion to expose the ore pulp surface behind the froth breaking.
The body interior of microorganism used therefor oxidation reactor of the present invention has the air feed distributor, the upper side of body is provided with the ore pulp overfall, the ore pulp overfall is connected with the pulp gravity flow groove, the inside of body is provided with stirring system, the top of body is provided with the defoamer sprinkling system of inserting to body interior, and body interior is positioned at ore pulp overfall place and is provided with foam baffle.
The invention has the beneficial effects as follows: the present invention's method is in the microbiological oxidation reactor, stop foam by foam baffle is set, then, eliminate foam by spraying defoamer again, finally make gold floatation concentrate microbiological oxidation preliminary treatment complete, improved gold recovery.
Description of drawings
Fig. 1 is the structural representation of microorganism used therefor oxidation reactor of the present invention.
The specific embodiment:
See also shown in Figure 1, structural representation for microorganism used therefor oxidation reactor 1 of the present invention, the body interior of microbiological oxidation reactor 1 wherein has air feed distributor 2, the upper side of body is provided with ore pulp overfall 3, ore pulp overfall 3 is connected with pulp gravity flow groove 4, the inside of body is provided with stirring system 8, and the top of body is provided with the defoamer sprinkling system 7 of inserting to body interior, and body interior is positioned at ore pulp overfall 3 places and is provided with foam baffle 5.
Cooperate shown in Figure 1ly, the step of the present invention's method is as follows:
(1): ore pulp overfall 3 places in microbiological oxidation reactor 1 are provided with foam baffle 5, the foam 6 that floats on the ore pulp surface is retained in the microbiological oxidation reactor 1, only has liquid basifacial ore pulp in ore deposit just can flow in the next stage microbiological oxidation reactor.
Usually the ore pulp in the microbiological oxidation reactor 1 flows automatically in the next stage microbiological oxidation reactor by outlet in surface stream mode.The present invention arranges a foam baffle 5 at microbiological oxidation reactor 1 ore pulp overfall 3 places, and the foam 6 that floats on the ore pulp surface is retained in the microbiological oxidation reactor 1, only has liquid basifacial ore pulp in ore deposit just can flow in the next stage microbiological oxidation reactor.The ore pulp that flows in the next stage microbiological oxidation reactor may carry the small part floating agent, and still, the microbiological oxidation reactor 1 that foam baffle 5 is set by what just can thoroughly solve in the microbiological oxidation process and produce bubble-related issues.
(2): the foam 6 to microbiological oxidation reactor 1 ore pulp surface flotation sprays defoamer.
The purpose of spraying defoamer is exactly to eliminate floating foam 6, make foam 6 be transformed into ore pulp, and then the ore pulp in microbiological oxidation reactor 1 carries out microbiological oxidation.
How much intensity of sprinkling defoamer decides on buoyant foam 6, generally is as the criterion to expose the ore pulp surface behind the froth breaking.
Claims (2)
1. the foam processing method of a gold floatation concentrate microbiological oxidation pretreating process, the step of the method is as follows:
(1): the ore pulp overfall place in the microbiological oxidation reactor is provided with foam baffle, and the foam that floats on the ore pulp surface is retained in the microbiological oxidation reactor, only has liquid basifacial ore pulp in ore deposit just can flow in the next stage microbiological oxidation reactor;
(2): the foam to microbiological oxidation reactor ore pulp surface flotation sprays defoamer, make foam be transformed into ore pulp, and then the ore pulp in the microbiological oxidation reactor carries out microbiological oxidation.
2. employed microbiological oxidation reactor of the described method of claim 1, the body interior of its microbiological oxidation reactor (1) has air feed distributor (2), the upper side of body is provided with ore pulp overfall (3), ore pulp overfall (3) is connected with pulp gravity flow groove (4), the inside of body is provided with stirring system (8), it is characterized in that: the top of body is provided with the defoamer sprinkling system (7) of inserting to body interior, and body interior is positioned at ore pulp overfall (3) and locates to be provided with foam baffle (5).
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011100627014A CN102161015B (en) | 2011-03-16 | 2011-03-16 | Bubble treatment method of flotation gold concentrate microbiological oxidation pretreatment process and microbiological oxidation reactor |
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| CN2011100627014A CN102161015B (en) | 2011-03-16 | 2011-03-16 | Bubble treatment method of flotation gold concentrate microbiological oxidation pretreatment process and microbiological oxidation reactor |
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| CN102161015A CN102161015A (en) | 2011-08-24 |
| CN102161015B true CN102161015B (en) | 2013-04-03 |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103285625B (en) * | 2013-06-13 | 2015-08-26 | 北京矿冶研究总院 | Defoaming method for reverse flotation desilication of phosphorite |
| CN103433143A (en) * | 2013-09-17 | 2013-12-11 | 长沙有色冶金设计研究院有限公司 | Calin type gold ore flotation method |
| CN104831059A (en) * | 2015-04-12 | 2015-08-12 | 长春黄金研究院 | Horizontal microbial oxidation reactor |
| CN105537006B (en) * | 2016-02-02 | 2018-04-24 | 青岛智瑞生物有限公司 | Using the method for biological agent flotation gold containing ore |
| CN105925798A (en) * | 2016-05-25 | 2016-09-07 | 长春黄金研究院 | Microorganism metallurgical reactor suitable for extremely cold environment |
| CN106378266A (en) * | 2016-11-01 | 2017-02-08 | 长春黄金研究院 | Foam treating device and method for microorganism oxidation pretreatment for flotation gold concentrate |
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| US4816234A (en) * | 1985-05-10 | 1989-03-28 | Kamyr, Inc. | Utilization of oxygen in leaching and/or recovery procedures employing carbon |
| CN1097357A (en) * | 1993-06-10 | 1995-01-18 | 张怀信 | Eliminate the method for flotation concentrate mineralized froth |
| CN1387581A (en) * | 1999-09-07 | 2002-12-25 | 比利顿知识产权有限公司 | Bioleaching of sulphide minerals |
| CN101285118A (en) * | 2008-05-20 | 2008-10-15 | 华东理工大学 | Biologic oxidation reactor for refractory auric sulfide ore |
| CN101961684A (en) * | 2010-07-16 | 2011-02-02 | 曹树营 | Overflow type enhanced tailing jet flow flotation device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6294362B1 (en) * | 1996-10-04 | 2001-09-25 | Mbx Systems, Inc. | Rapid ferrous sulfate biooxidation |
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| US4816234A (en) * | 1985-05-10 | 1989-03-28 | Kamyr, Inc. | Utilization of oxygen in leaching and/or recovery procedures employing carbon |
| CN1097357A (en) * | 1993-06-10 | 1995-01-18 | 张怀信 | Eliminate the method for flotation concentrate mineralized froth |
| CN1387581A (en) * | 1999-09-07 | 2002-12-25 | 比利顿知识产权有限公司 | Bioleaching of sulphide minerals |
| US6860919B1 (en) * | 1999-09-07 | 2005-03-01 | Billiton Intellectual Property, B.V. | Recovery of precious metal from sulphide minerals by bioleaching |
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Address after: 130012 nanhu road, Jilin, Changchun, No. 6760 Co-patentee after: China National Gold Corporation Technology Center Patentee after: Changchun Gold Research Institute Co., Ltd. Address before: 130012 nanhu road, Jilin, Changchun, No. 6760 Co-patentee before: China National Gold Corporation Technology Center Patentee before: Changchun Gold Research Institute |
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